International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systemshttp://www.ijates.org/index.php/ijates
<p>The International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems (IJATES<sup>2</sup>) is an all-electronic journal with the aim to bring the most recent and unpublished research and development results in the area of electronics to the scientific and technical societies, and is supported by the ISES (International Science and Engineering Society, o.s.).</p><p><span>IJATES<sup>2 </sup>is fully open access journal, a</span>ll papers are DOI (digital object identifier) attached (prefix 10.11601) and once accepted, they are immediately available through the Internet from all over the world for free. 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Measurement of Relative Position of Camera and Optical Beacon by Simultaneous Passive Methodhttp://www.ijates.org/index.php/ijates/article/view/267
<p>The paper deals with a problem of a passive measurement of the relative position of an optical beacon and an optical camera by a simultaneous analytical method. The beacon is composed of nine light sources which are arranged in space in a defined way. The proposed beacon layout enables the measurement of the beacon range and one position angle of the camera. This paper presents the mathematical model of the measurement method and the results, which were gathered on the basis of two experimental measurements. The first experiment was only indicative. The extreme results of the second experiment were as follows: the minimum and maximum absolute percentage errors of the beacon range were zero and 1.72%, the minimum and maximum errors of the position angle were 0.1 deg and 1.64 deg. The standard commercial cameras and lenses with different focal lengths were used.</p>Jiri NemecekMartin Polasek
Copyright (c) 2019 International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems
2019-02-012019-02-01811710.11601/ijates.v8i1.267Performance Analysis of Translucent Space Division Multiplexing Based Elastic Optical Networkshttp://www.ijates.org/index.php/ijates/article/view/270
<p class="Abstract">The required upgradation of the network capacity of the single-mode fiber which is constrained by the non-linear Shannon’s limit, and the capacity provisioning needed by the future diverse Internet traffic can be resolved by the adoption of the Space Division Multiplexing (SDM) based Elastic Optical Networks (EONs) (SDM-b-EONs). In the current work, we focus on the performance analysis of a SDM-b-EON in which translucent lightpaths are routed through the spectral super-channels over the spatial single-mode fiber(s) bundle(s) links. In regard to regeneration, we investigate three scenarios which differ in their regeneration variability level in addition to the adjustment of modulation formats according to transmission route characteristics. We conduct extensive simulations considering an online traffic case and two realistic network topologies with different numbers of (i) fibers in every link, and (ii) transceivers available within SDM-b-EON. The obtained results demonstrate that when regeneration is conducted with complete flexibility and simultaneously the modulation format conversion is also permitted at every SDM-b-EON node both, largest traffic volume amounts can be provisioned, and significant SDM-b-EON performance scaling can be obtained with a corresponding increase in the utilized fibers amount.</p>Sridhar IyerShree Prakash Singh
Copyright (c) 2019 International Journal of Advances in Telecommunications, Electrotechnics, Signals and Systems
2019-02-122019-02-128181610.11601/ijates.v8i1.270